Fan rotor

ABSTRACT

A fan rotor includes a rotating shaft, a metal body, at least one rotor magnet and a vane wheel. The metal body has at least one top surface, at least one cylindrical portion and at least one connecting portion. The top surface is disposed at an end of the cylindrical portion, and the rotating shaft is disposed in the cylindrical portion an connected to the top surface of the rotating shaft, and an opening, connecting portion is formed at the other end of the cylindrical portion and extended from an outer wall of the opening in a direction away from the rotating shaft. The rotor magnet is disposed around an inner wall surface of the cylindrical portion. The vane wheel is detachably connected to the metal body through the connecting portion.

The technical field relates to a fan, and more particularly to a fanrotor. In addition, this disclosure claims U.S. Provisional PatentApplication No. 62/001,898 as its parent application and May 22, 2014 asits priority date.

BACKGROUND OF THE INVENTION Field of the Invention

This disclosure is directed to a fan rotor of a large fan, whosestructure generally includes a metal cap shell and a vane wheel, and themetal cap shell has a permanent magnet and a rotating shaft installedtherein, and the vane wheel is connected to the metal cap shell fanrotor and pivoted to a stator seat by a rotating shaft for rotating therotating shaft with respect to the stator seat. In general, the metalcap shell is a part of the fan motor, so that the manufacture requiresdifferent motors corresponsive to different models of vane wheels, andthe rotor cannot be used universally for different types of vane wheels.Obviously, the conventional fan rotor is not cost-effective.

In view of the aforementioned problems of the prior art, the inventor ofthis disclosure based on years of experience in the industry to conductextensive researches and experiments and finally invented a novel fanrotor to overcome the problem of the prior art.

SUMMARY OF THE INVENTION

Therefore, it is a primary objective of this disclosure to provide auniversal fan rotor that can be installed, removed, or replaced forvarious types of vane wheels.

To achieve the aforementioned and other objectives, this disclosureprovides a fan rotor comprising a rotating shaft, a metal body, at leastone rotor magnet and a vane wheel. The metal body has at least one topsurface, at least one cylindrical portion and at least one connectingportion, and the top surface disposed at an end of the cylindricalportion, and the rotating shaft is disposed in the cylindrical portionand connected to the top surface of the rotating shaft, and an opening,connecting portion is formed at the other end of the cylindrical portionand extended radially from the outer wall of the opening towards adirection away from the rotating shaft. The rotor magnet is disposedaround an inner wall surface of the cylindrical portion. The vane wheelis detachably connected to the metal body through the connectingportion.

The fan rotor of this disclosure may have different types of vane wheelsinstalled at the metal body depending on actual using requirements, sothat the fan rotor of this disclosure is applicable for different usingrequirements.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an exploded view of a first exemplary embodiment of a fanrotor of this disclosure;

FIG. 2 is a perspective view of the first exemplary embodiment of a fanrotor of this disclosure;

FIG. 3 is a perspective view of a connecting structure of the firstexemplary embodiment of a fan rotor of this disclosure;

FIG. 4 is an exploded view of a second exemplary embodiment of a fanrotor of this disclosure;

FIG. 5 is a perspective view of the second exemplary embodiment of a fanrotor of this disclosure;

FIG. 6 is a perspective view of a connecting structure of the secondexemplary embodiment of a fan rotor of this disclosure;

FIG. 7 is an exploded view of a third exemplary embodiment of a fanrotor of this disclosure;

FIG. 8 is a perspective view of the third exemplary embodiment of a fanrotor of this disclosure;

FIG. 9 is a perspective view of a connecting structure of the thirdexemplary embodiment of a fan rotor of this disclosure;

FIG. 10 is an exploded view of a fourth exemplary embodiment of a fanrotor of this disclosure;

FIG. 11 is a perspective view of the fourth exemplary embodiment of afan rotor of this disclosure;

FIG. 12 is a perspective view of a connecting structure of the fourthexemplary embodiment of a fan rotor of this disclosure;

FIG. 13 is an exploded view of a fifth exemplary embodiment of a fanrotor of this disclosure;

FIG. 14 is a perspective view of the fifth exemplary embodiment of a fanrotor of this disclosure;

FIG. 15 is a perspective view of a connecting structure of the fifthexemplary embodiment of a fan rotor of this disclosure;

FIG. 16 is an exploded view of a sixth exemplary embodiment of a fanrotor of this disclosure; and

FIG. 17 is a perspective view of the sixth exemplary embodiment of a fanrotor of this disclosure.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

The technical contents of this disclosure will become apparent with thedetailed description of preferred embodiments accompanied with theillustration of related drawings as follows.

With reference to FIGS. 1 to 3 for the first exemplary embodiment of afan rotor of this disclosure, the fan rotor comprises a metal body 100,a vane wheel 200 and at least one rotor magnet 300.

The metal body 100 includes a rotating shaft 110, at least one topsurface 120, at least one cylindrical portion 130 and at least oneconnecting portion 140. The rotating shaft 110 is installed axially inthe cylindrical portion 130. The rotor magnet 300 is disposed around aninner surface of the cylindrical portion. The top surface 120 isdisposed at an end of the cylindrical portion 130. The rotating shaft110 is connected to the top surface 120. An opening 131 is formed at theother end of the cylindrical portion 130. The connecting portion 140 isextended from an outer wall of the opening 131 of the cylindricalportion 130 in a direction away from the rotating shaft 110. Theconnecting portion 140 preferably has a plurality of first locking holes141 arranged around the connecting portion 140.

The vane wheel 200 includes a connecting structure 210 and a vane unit220, and the connecting structure 210 is sheathed on the metal body 100and locked to the connecting portion 140, and the vane unit 220 islocked to the connecting structure 210. Therefore, the vane wheel 200 isdetachably connected to the metal body 100 through the connectingportion 140. Wherein, the vane unit 220 is an axial flow type blade, aplate type blade, or a centrifugal blade.

In this exemplary embodiment, the connecting structure 210 has aplurality of connecting units 211 formed on and protruded from an outerside of the connecting structure 210, and each connecting unit 211includes a connecting pillar 212 extended in a direction parallel to theaxis of the connecting structure 210, and each connecting pillar 212preferably has a blade carrying portion 213 extended from an end or anedge of each respective connecting pillar, and the blade carryingportion 213 is inclined with respect to the connecting pillar 212 todefine an included angle which is not equal to 0 degree or 180 degrees.The other end of each connecting pillar 212 is locked to the connectingportion 140. The connecting pillars 212 are configured to becorresponsive to the first locking holes 141 respectively, and eachconnecting pillar 212 has a second locking hole 214 formed thereon, andthe second locking hole 214 formed on each connecting pillar 212penetrates through both ends of the connecting pillar 212 along thelongitudinal direction of the connecting pillar 212.

In this exemplary embodiment, the vane unit 220 includes a plurality ofaxial flow type blades 221, and each axial flow type blade 221 is lockedto the blade carrying portion 213 of the corresponsive connecting pillar212 and arranged substantially in a radial shape, and each axial flowtype blade 221 is inclined with respect to the connecting structure 210.The fan rotor is pivoted to a stator seat (not shown in the figure)through the rotating shaft 110 and rotatable with respect to the statorseat, so that the axial flow type blade 221 can rotate with respect tothe rotating shaft 110.

With reference to FIGS. 4 to 6 for the second exemplary embodiment of afan rotor of this disclosure, the fan rotor comprises a metal body 100and a vane wheel 200. The structure of the metal body 100 of thisexemplary embodiment is the same as that of the first exemplaryembodiment and thus will not be repeated.

The vane wheel 200 includes a connecting structure 210 and a vane unit230, and the structure of the connecting structure 210 is the same asthat of the first exemplary embodiment, and thus will not be repeated.The connecting structure 210 is sheathed on the metal body 100 andlocked to the connecting portion 140. If the length of the connectingstructure is shorter than the metal body, the connecting structure willsurround a portion of the lateral side of the metal body only. The vaneunit 230 is preferably locked to the connecting structure 210.

In this exemplary embodiment, the vane unit 230 includes a chassis 231,a socket 232 formed on the chassis 231, and a plurality of third lockingholes 233 formed on the chassis 231 and corresponsive to the firstlocking holes 141 respectively and arranged around the socket 232. Thechassis 231 includes a plurality of centrifugal blades 234 disposedaround the socket 232 substantially in a radial shape.

The vane wheel 200 is sheathed on the metal body 100 through the socket232, so that the centrifugal blades 234 are arranged round the metalbody 100. An end of the second locking hole 214 is locked to thecorresponsive first locking hole 141 formed on the connecting portion140 by a screw 10, and the other end of the second locking hole 214 islocked to the corresponsive third locking hole 233 by a screw 10, sothat the vane wheel 200 is locked to the connecting portion 140. The fanrotor is pivoted to a stator seat (not shown in the figure) by therotating shaft 110 and rotatable with respect to the stator seat, sothat the centrifugal blades 234 can rotate with respect to the rotatingshaft 110.

With reference to FIGS. 7 to 9 for the third exemplary embodiment of afan rotor of this disclosure, the fan rotor comprises a metal body 100and a vane wheel 200. The structure of the metal body 100 of thisexemplary embodiment is the same as that of the first exemplaryembodiment and thus will not be repeated.

The vane wheel 200 includes a connecting structure 210 and a vane unit230, and the structure of the connecting structure 210 is substantiallythe same as that of the first exemplary embodiment, except that thelength of the connecting structure 210 and the connecting pillar 212 issubstantially equal to the length of the metal body 100, so that whenthe connecting structure 210 is sheathed on the metal body 100, theconnecting structure completely surrounds the lateral side of the metalbody and higher than the top surface 120 of the metal body 100. Theconnecting structure 210 is locked to the connecting portion 140, andthe vane unit 230 is locked to the connecting structure 210.

In this exemplary embodiment, the vane unit 230 includes a chassis 231,and a plurality of third locking holes 233 formed on the chassis 231,configured to be corresponsive to the first locking holes 141respectively, and arranged substantially in a circular shape. Thechassis 231 has a plurality of centrifugal blades 234 installed thereonand arranged substantially in a radial shape.

An end of the second locking hole 214 is locked to the corresponsivefirst locking hole 141 of the connecting portion 140 by a screw 10, andthe other end of the second locking hole 214 is locked to thecorresponsive third locking hole 233 by a screw 10, so that the vanewheel 200 is clocked to the connecting portion 140, and the extendingline of the rotating shaft 110 passes through the radiating center ofthe centrifugal blade 234. The fan rotor is pivoted to a stator seat(not shown in the figure) through the rotating shaft 110 and rotatablewith respect to the stator seat, so that the centrifugal blade 234 canrotate with respect to the rotating shaft 110.

In this exemplary embodiment, a blade carrying portion 213 is extendedfrom a side of each connecting pillar 212 and inclined with respect tothe connecting pillar 212 with an inclined angle not equal to 0 degreeor 180 degrees, and each blade carrying portion 213 is provided forbeing selectively locked to the axial flow type blade 221 of the vaneunit 220 as described in the first exemplary embodiment. If the axialflow type blade 221 is selected and locked, then the vane unit 220having the centrifugal blade 234 will be removed or replaced.

With reference to FIGS. 10 to 12 for the fourth exemplary embodiment ofa fan rotor of this disclosure, the fan rotor comprises a metal body 100and a vane wheel 200. The structure of the metal body 100 of thisexemplary embodiment is the same as that of the first exemplaryembodiment and thus will not be repeated.

The vane wheel 200 includes a connecting structure 210 and a vane unit230. In this exemplary embodiment, the connecting structure 210 has aplurality of connecting units 211 formed and protruded from an outersurface of the connecting structure 210, and each connecting unitincludes a connecting pillar 212, and each connecting pillar 212 isparallel to the axis of the connecting structure 210, and an end of eachconnecting pillar 212 is locked to the connecting portion 140. Theconnecting pillars 212 are configured to be corresponsive to the firstlocking holes 141 respectively, and each connecting pillar 212 has asecond locking hole 214 penetrating through both ends of the connectingpillar 212 along the longitudinal direction of the connecting pillar212. The connecting structure 210 is sheathed on the metal body 100, andan end of the connecting structure 210 is locked to the connectingportion 140, and the connecting structure has a length shorter than themetal body, so that the connecting structure surrounds a portion of thelateral side of the metal body, and the vane unit 230 is locked to theother end of the connecting structure 210.

In this exemplary embodiment, the vane unit 230 includes a chassis 231,a socket 232 formed on the chassis 231, a plurality of third lockingholes 233 formed on the chassis 231, configured to be corresponsive tothe first locking holes 141 respectively, and arranged around the socket232. The chassis 231 has a plurality of centrifugal blades 234 disposedthereon and arranged around the socket 232 substantially in a radialshape.

The vane wheel 200 is sheathed on the metal body 100 through the socket232, so that the centrifugal blades 234 are arranged around the metalbody 100. An end of the second locking hole 214 is locked to thecorresponsive first locking hole 141 of the connecting portion 140 by ascrew 10, and the other end of the second locking hole 214 is locked tothe corresponsive third locking hole 233 by a screw 10, so that the vanewheel 200 is locked to the connecting portion 140. The fan rotor ispivoted to a stator seat (not shown in the figure) through the rotatingshaft 110 and rotatable with respect to the stator seat, so that thecentrifugal blades 234 can rotate with respect to the rotating shaft110.

With reference to FIGS. 13 to 15 for the fifth exemplary embodiment of afan rotor of this disclosure, the fan rotor comprises a metal body 100and a vane wheel 200. The structure of the metal body 100 is the same asthat of the first exemplary embodiment, and thus will not be repeated.

The vane wheel 200 includes a connecting structure 210 and a vane unit230. The structure of the connecting structure 210 is substantially thesame as that of the fourth exemplary embodiment, except that theconnecting structure 210 and the connecting pillar 212 have a lengthsubstantially equal to the length of the metal body 100. The connectingstructure 210 is sheathed on the metal body 100, and the connectingstructure surrounds the lateral side of the metal body 100 completely,or the connecting structure is higher than the top surface 120 of themetal body 100. An end of the connecting structure 210 is locked to theconnecting portion 140, and the vane unit 230 is locked to theconnecting structure 210.

In this exemplary embodiment, the vane unit 230 includes a chassis 231,a plurality of third locking holes 233 formed on the chassis 231 andcorresponsive to the first locking holes 141 respectively, and the thirdlocking holes 233 are configured to be corresponsive to the firstlocking holes 141 and arranged substantially in a radial shape. Thechassis 231 includes a plurality of centrifugal blades 234 disposedthereon and arranged substantially in a radial shape.

An end of the second locking hole 214 is locked to the corresponsivefirst locking hole 141 of the connecting portion 140 by a screw 10, andthe other end of the second locking hole 214 is locked to thecorresponsive third locking hole 233 by a screw 10, so that the vanewheel 200 is locked to the connecting portion 140, and the extendingline of the rotating shaft 110 passes through the radiating center ofthe centrifugal blade 234. The fan rotor is pivoted to a stator seat(not shown in the figure) through the rotating shaft 110 and rotatablewith respect to the stator seat, so that the centrifugal blades 234 canrotate with respect to the rotating shaft 110.

With reference to FIGS. 16 and 17 for the sixth exemplary embodiment ofa fan rotor of this disclosure, the fan rotor comprises a metal body 100and a vane wheel 200.

The metal body 100 has a rotating shaft 110 installed therein and alongthe axial direction in the metal body 100, an opening 131 formed on themetal body 100, and a connecting portion 140 integrally extended fromthe rim of the opening 131 along the radial direction of the metal body100, and the connecting portion 140 has a plurality of first lockingholes 141 formed thereon and arranged around the connecting portion 140.

The vane wheel 200 includes a vane unit 230, and the vane unit 230includes a chassis 231, a socket 232 formed on the chassis 231, and aplurality of third locking holes 233 formed on the chassis 231 andcorresponsive to the first locking holes 141 respectively and arrangedaround the socket 232. The chassis 231 has a plurality of centrifugalblades 234 disposed thereon and arranged around the socket 232substantially in a radial shape, and the vane wheel 200 is sheathed onthe metal body 100 through the socket 232, so that the centrifugalblades 234 are arranged around the metal body 100, and each firstlocking hole 141 is locked to the corresponsive third locking hole 233by a screw 10, so that the vane wheel 200 is locked to the connectingportion 140. The fan rotor is pivoted to a stator seat (not shown in thefigure) by the rotating shaft 110 and rotatable with respect to thestator seat, so that the centrifugal blades 234 can rotate with respectto the rotating shaft 110.

In this disclosure, the fan rotor and the vane wheel 200 have theconnecting structure 210 selectively locked to the vane unit 220 havingthe axial flow type blades 221 or the vane unit 230 having thecentrifugal blades 234. In addition, the fan rotor of this disclosuremay select the connecting structure 210 with a different lengthaccording to actual using requirements, so that the installationposition of the vane unit 230 having the centrifugal blades 234 may beadjusted according to the actual using requirements. In addition, thevane wheel 200 may not come with the connecting structure 210 accordingto the actual requirements, and the vane unit 230 having the centrifugalblades 234 may be locked to the connecting portion 140 directly.Therefore, the fan rotor of this disclosure can meet different usingrequirements. In addition, the metal body 100 and the connecting portion140 are integrally formed, so that the gap between the outer wall of themetal body 100 and the inner wall of the connecting structure 210 can bereduced to minimize the vibration produced by the rotation of the vanewheel 200.

While this disclosure has been described by means of specificembodiments, numerous modifications and variations could be made theretoby those skilled in the art without departing from the scope and spiritof this disclosure set forth in the claims.

What is claimed is:
 1. A fan rotor, comprising: a rotating shaft; ametal body, having at least one top surface, at least one cylindricalportion and at least one connecting portion, wherein the top surface isdisposed at an end of the cylindrical portion, and the rotating shaft isdisposed in the cylindrical portion and connected to the top surface ofthe rotating shaft, and an opening, connecting portion is formed at theother end of the cylindrical portion and extended radially from an outerwall of the opening towards a direction away from the rotating shaft; atleast one rotor magnet, installed around an inner wall surface of thecylindrical portion; and a vane wheel, detachably connected to the metalbody through the connecting portion.
 2. The fan rotor as claimed inclaim 1, wherein the vane wheel includes a plurality of vane units andat least one connecting structure, and the vane units are connected tothe connecting structure, and the connecting structure is installable toor detachable from the connecting portion.
 3. The fan rotor as claimedin claim 2, wherein the connecting structure has a plurality of bladecarrying portions formed on an outer side of the blade carryingportions, and the vane units are combined with the blade carryingportions respectively.
 4. The fan rotor as claimed in claim 3, whereinthe vane units are axial flow type blades, plate type blades, orcentrifugal blades.
 5. The fan rotor as claimed in claim 2, wherein theconnecting structure has a plurality of connecting pillars disposed onan outer side of the connecting structure, and the connecting structureand the connecting portion are installable to each other through theconnecting pillars and detachable from the connecting pillars.
 6. Thefan rotor as claimed in claim 5, wherein the blade carrying portions areconfigured to be corresponsive to the connecting pillars respectively,and an angle not equal to 0 degree or 180 degrees is included betweenthe blade carrying portions and the respective connecting pillars. 7.The fan rotor as claimed in claim 3, wherein the connecting structurehas a plurality of connecting pillars disposed on an outer side of theconnecting structure, and the connecting structure and the connectingportion are installable to each other through the connecting pillars anddetachable from the connecting pillars.
 8. The fan rotor as claimed inclaim 7, wherein the blade carrying portions are configured to becorresponsive to the connecting pillars respectively, and an angle notequal to 0 degree or 180 degrees is included between the blade carryingportions and the respective connecting pillars.
 9. The fan rotor asclaimed in claim 2, wherein the connecting structure has at least aportion disposed outside the cylindrical portion.
 10. The fan rotor asclaimed in claim 2, wherein the vane units are disposed outside thecylindrical portion or at a position higher than the top surface.